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Alloclasite

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SMM539621

Alloclasite

Rare Mineral

Description Tabs

Description
Locality: 
Prameri, Gonnosfanadiga, South Sardinia Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2 × 1.5 cm
Description

Metallic alloclasite crystals, in some geodes in granular quartz, quartz is totally saturated by inclusions of alloclasite crystals, which in various geodes protruding from quartz. XRD confirmed.The alloclasite rarely found well-crystallized.

Mineral Data
What's on the rock

Alloclasite

Formula: 
Co1-xFexAsS
Strunz: 
2.EB.10b
Crystal System: 
Orthorhombic
Hardness: 
5.0
Type Locality: 
Elizabeth Mine, Oraviţa (Oravicza; Orawitza), Oraviţa-Ciclova Cu-Mo-(W) ore field, Banat Mts, Caraş-Severin Co., Romania

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